Mar. 08, 2013

When the Earth Swallows

Last week a Florida man was swallowed by the earth as he slept, the victim of a sinkhole. In 1981, another Florida sinkhole ate a swimming pool and a Porsche repair shop. Randall Orndorff, a geologist for the U.S. Geological Survey, discusses this mysterious phenomenon, and whether technology exists to predict when--and where--the surface might crumble.